Creo 2_0 Basic 2014

BY CHRISTOPHER F. SIKORA

TRODUCTION

This manual is for educational purposes only. It may be printed, but not resold for profit for its content. Creo Parametric 2.0 is a registered trademark of PTC Corporation.

Creo Parametric 2.0 is a product name of PTC Corporation.

ACIS is a registered trademark of Spatial Technology Inc. IGES™ Access Library is a trademark of IGES Data Analysis, Inc.

Other brand or product names are trademarks or registered trademarks of their respective holders.

The information discussed in this document is subject to change without notice and should not be considered commitments by Christopher F. Sikora.

The software discussed in this document is furnished under a license and may be used or copied only in accordance with the terms of this license.

Pro/ENGINEER (Creo 2.0) Basics 105

Pro/ENGINEER (Creo) Basics 3 credit hours

Exploration of the theory and application of solid modeling techniques for product design and manufacturing. Prerequisite: Intro to Engineering Drawings 101 or consent of instructor.

Course Objectives:

Provide the student with the knowledge and practical experience in the areas of 3D CAD modeling of parts, assemblies, and the creation of mechanical drawings from the

models. Textbook

Creo Basics free/pdf., parts, and videos provided on www.vertanux1.com

Evaluation Scale: A 90% to 100% B 80% to 89% C 70% to 79% D 60% to 69% F Below 60% Points: Exercises 300 pts Mid Term 300 pts Final 300 pts Labs 100 pts

General Course Outline

Date Week Topic

1. Introduction to the Interface Lecture

Modeling Theory - Sketching and Base Feature Geometry Creation. Lab 2. Revolved Features and Mirroring

3. Part Modeling

Secondary Features. Fillets, Chamfers, Draft, Patterns, Mirroring. 4. Sweeps, and Circular Patterns

5. Modeling Quiz and CAD Administration

6. Building Assemblies (Bottom-Up method “BU”) 7. Creating Drawings. Review for Mid Term 8. Mid Term Exam

9. 3D Curves and Sweeps 10. Swept Blends/Lofting

11. Assemblies Creation (Top-Down Method “TD”) 12. Assembly/Part Editing (“TD” & “BU” Methods) 13. Sheet Metal Intro

14. Assembly Project (continued)

15. Lab time to complete exercise, Review for Final Exam 16. Final Exam

STUDENTS WITH DISABILITIES

We welcome students with disabilities and are committed to supporting them as they attend college. If a student has a disability (visual, aural, speech, emotional/psychiatric, orthopedic, health, or learning), s/he may be entitled to some accommodation, service, or support. While the College will not compromise or waive essential skill requirements in any course or degree, students with disabilities may be supported with

accommodations to help meet these requirements.

The laws in effect at college level state that a person does not have to reveal a disability, but if support is needed, documentation of the disability must be provided. If none is provided, the college does not have to make any exceptions to standard procedures. All students are expected to comply with the Student Code of Conduct and all other college procedures as stated in the current College Catalog.

PROCEDURE FOR REQUESTING ACCOMMODATIONS:

1. Go to SRC108 and sign release to have documentation sent to the college, or bring in documentation.

2. Attend an appointment that will be arranged for you with the ADA coordinator or designee.

CLASSROOM PROCEDURES:

1. Attendance of each scheduled class meeting is required unless otherwise specified by the instructor.

2. Daily work problems and hand-outs will be maintained in a notebook and turned in upon the instructor’s request.

3. Reading assignments will be made prior to discussing the material.

4. Keep your drafting workstation clean and free of miscellaneous materials. 5. Please report any malfunctioning equipment to the instructor.

LABORATORY UTILIZATION:

3. Keep records of your progress and to summarize your learning experiences with a final

Attendance and Cheating Policies

Introduction: Drafting is a technical profession in our society; consequently,

presentations in this course are factual and technical, and final grades represent the student’s accomplishment of the learning activities.

Attendance: Attendance at each class meeting is required. Attendance may be a factor when determining the final grade. Your instructor will specify his/her policy concerning the relationship of attendance and the final grade.

Each instructor has the option of taking attendance for his/her personal use. If a student misses class because of illness, a field trip, or any other AUTHORIZED reason, the student is obligated to determine what was missed, and will be held responsible for that work. If a student is absent without an excused absence, he/she will also be held responsible, and must obtain all information from some source other than the class instructor. Instructors DO NOT have to accept any

make-up work, do individual tutoring, or make special test arrangements for any UNEXCUSED ABSENCE.

Cheating: Cheating in this department is interpreted to mean the copying, tracing, or use of another person’s work for the purpose of completing an assignment.

Individual initiative and personal performance in completing all assignments is required of all students. This course may seem to offer situations that are conducive to cheating. However, evidence of cheating on the part of any student will be sufficient cause for an assignment of an “F” for the course.

Instructors reserve the right to change a grade after the end of the semester if there is evidence to warrants.

2. 18:46 E2 CREO Parametric 2.0

Exercise 2 - Introduction to Sketch Mirroring, and Revolved features inside Creo 2.0…

3. 36:30

E3 CREO Parametric 2.0

Exercise 3 - Secondary feature modeling, Extrusions with (new) taper/draft function. offset datum planes, extrude up to next, engraved text.

4. 16:38

E4 CREO Parametric 2.0

Exercise 4 - Introduction to sweeps, revolved features, filleting, circular patterns.

5. 21:14

E5 CREO Parametric 2.0 (new)

8. 16:03 E8 CREO Parametric 2.0

Exercise 8 - Swept Blends, Mirroring, using Sketch Splines to create a boat hull sections. Download the free training manual at www.vertanux1.com

9. 18:56

E9 CREO Parametric 2.0

Exercise 9 - Introduction to Top-Down Assembly Modeling…

10. 18:48

E10 CREO Parametric 2.0

Exercise 10 - Top-Down Assembly Modeling

11. 7:56

E11 CREO Parametric 2.0

CAD 105 TOTALS (E – Exercise, L-Lab, Q-Quiz)  E1 - 10pts o L1 – 10pts o L1b – 10pts  E2 – 30pts o L2 – 5pts o Q1 -10pts  E3 – 30pts o L3 - 5pts o L3b – 5pts  E4– 30pts o L3c-5pts  E5– 30pts o L5b-10pts  E6– 30pts o L6-10pts  E7– 30pts o L3d-5pts  E8– 30pts  E9– 30pts o L9 – 5pts  E10– 30pts

Introduction to Pro/E -

creo

creo

2.0 Interface

Mouse Buttons

Left Button - Most commonly used for selecting objects on the screen or sketching. Origin (Axis Center x-0, y-0, z-0) Ribbon Menu

Feature Manager

Icons

View port View Options

“Options & Properties” menus “The heart of

creo

”

Selecting the “File” – “Options” pull down menu (located at the top left side of the

screen) opens the active documents Options.

Model Properties

View options

Sketching

NOTE: If you do not see all of these icons on your interface you can customize the toolbars to bring them up. Right mouse button click on the top grey frame of the window and locate the “customize” option.

Where do you start a sketch?

Sketches can be created on any Datum Plane or Planar Face or Surface. Pro/E provides you with three datum planes centralized at the Origin (your zero mark in space)

NOTE: Planes can also be created and will be discussed in more detail in the future. Also after completing

a sketch always select the Apply/Finish check mark on the sketch toolbar, this will activate the extrude or revolve feature tools.

Line Arcs  3 Point  Tangent  Concentric Circle Spline Apply/Finish Rectangle Trim Cancel Mirror Fillet Convert Entities & Offset Point Constraint/ Relations Dim Text Start Sketch Datum Plane

To start a sketch Pre-select the plane or face you desire to sketch on and then select the Sketch Icon. NOTE: You can select the planes from the “Feature Manager”.

Sketch Options –

Controlling your geometry…

Pro/E uses two methods for constraining geometric entities.

Constraints and Dimensions

Constraints can be referred to as common elements of geometry such as Tangency,

Parallelism, and Concentricity. These elements can be added to geometric entities automatically or manually during the design process.

Here is an example of adding a relationship between two geometric entities.

Cautious sketching can save time.

There are 3 primary file types in Creo, which include…

1. Part (.prt)

Single part or volume.

2. Assembly (.asm)

Multiple parts in one file assembled.

3. Drawing (.drw)

The 2D layout containing views, dimensions, and annotations.

Sketch Constraints (Relations)

Constraint Geometric entities to select Resulting Constraint Horizontal or

Vertical

One or more lines or two or more points.

The lines become horizontal or vertical (as defined by the current sketch space). Points are aligned horizontally or vertically.

Collinear Two or more lines. The items lie on the same infinite line.

Perpendicular Two lines. The two items are perpendicular to each other. Parallel Two or more lines.

A line and a plane (or a planar face) in a 3D sketch.

The items are parallel to each other. The line is parallel to the selected plane. Tangent An arc, ellipse, or spline, and

a line or arc.

The two items remain tangent. Concentric Two or more arcs, or a point

and an arc.

The arcs share the same centerpoint. Midpoint Two lines or a point and a

line.

The point remains at the midpoint of the line. Coincident A point and a line, arc, or

ellipse.

The point lies on the line, arc, or ellipse. Equal Two or more lines or two or

more arcs.

The line lengths or radii remain equal. Symmetric A centerline and two points,

lines, arcs, or ellipses.

The items remain equidistant from the centerline, on a line perpendicular to the centerline.

Controlling your geometry with dimensions…

Dimensioning this way will enable the length of the bracket to change but the holes will always remain positioned to the left side.

Dimensioning this way will enable the length of the bracket to change but the holes will always remain positioned to 1.5” off each

side.

Strong versus Weak Dimensions - Double click and

change to make them Strong!

Solid Modeling Basics

Layer Cake method

Extruded Boss/Base (Creates/Adds material)

Extruded Cut (Removes material) Ingredients:

 Profile

Revolve method

Revolve Boss/Base (Creates/Adds material)

Revolve Cut (Removes material) Ingredients:

 Profile

EXERCISE 1

Introduction to basic part modeling

Base Extrude Features create a 3D solid representation by extruding a 2 dimensional

profile of the entity.

4. Select the Rectangle tool. 1. Start a new “part”

file. Objective:

Create a solid model.

This will create a hole. This will fail to extrude.

3. Select the

Sketch icon. 7. Click to finish

NOTE: When dimensioning use the dimension tool and make edge selections, mouse center button click to apply dimension. 7. Select Boss Extrude. 8. Set to Blind @ .5”. 9. Hit “Apply” the green check mark to finish.

Adding a constraint – Ctrl Select both left edges of sketch and solid. Select Coincident

Toggle views using the “View Orientation”

toolbar. 10. To sketch the

next feature select the front face of

the model and then select the “Sketch” icon.

Extrude

Select the face, select sketch icon and draw a circle on the face. Dimension, Hit “Ok” 2. Enter .5”

1. Select the Extrude icon.

Extrude Cut

Go to file save and save-as “E1”

4. Select the Extrude icon.

Update or Regenerate model changes using the “Regenerate” button. 5. Select the “Through All” option. 6. Select the “Cut” and reverse options.

7. Select the “Apply” or hit “Enter” two

EXERCISE 2

Revolved Features

Revolved Feature - creates features that add or remove material by revolving one or

more profiles around a centerline. The feature can be a solid, a thin feature, or a surface. Tips… Profile Centerline, Edge, or Axis of Revolution

1. Create a new part file (E2) and then start a sketch on the “Front” plane.

4 2. Sketch the following. Ctrl select the profile and the horizontal centerline, then

using the “Mirror” tool to create a ¼ of the geometry and then mirror it to the other side. Make sure you finish adding the dimensions.

3. Select the Revolve feature icon. Then select the axis/centerline.

Rounds

4. Select the top and bottom edges and add a R.100” rounds/fillets. ON

EXERCISE 3

Secondary Feature Modeling

1. Sketch the geometry as show below on the “Front” plane.

2. Extrude. Select Mid-Plane, 1”.

Mid-Plane 1” DIA. 1.5” DIA. 1.2” .75” USE TANGENT LINES FINISH

3. DRAFT: Select the Draft tool, and then References, Ctrl select all side faces of the model. Then Click on the draft hinges dialog box, and select the Front Datum Plane.

4. Select the top surface (LMB Click 2 x) on the model and start a sketch on it. 7

5. OFFSET: Select the Offset tool. Then select Loop. Then select the face.

6. Enter -.125 and to flip the offset direction.

7. Select the extrude icon, and then set to cut and .125 depth.

9. Trim the intersection.

10. Select the extrude icon, and cut .700” depth.

11. Select the base of the pocket and start a sketch. Draw the following two .375 DIA. circles, and extrude / cut “Through-all”.

12. DATUM PLANE OFFSET: Select the Top datum plane, then select the

Datum icon. Set to -4 offset.

The “Datum” icon can offset as well as several other options for creating planes.

13. Start a sketch on “DTM 1” and draw a .5” dia. circle centered on the origin.

15. Select the circle and use the setting as shown in the illustration below.

16. Start a sketch on the front datum plane and draw a rectangle with the following dimensions.

17. Extrude boss using the mid-plane option and .750 thick. FINISH

18. Using the Draft tool select the following faces and front plane and put 7° of draft on the side faces of the handle.

19. Rounds: Select the rounds/fillet icon, then select the edges as shown in the

illustration below. Add .100”.

20. Add .060” Rounds to the following edges.

Finished

EXERCISE 4

Secondary Feature Modeling

1. Sketch the geometry as show below on the “Front” plane. Then Trim.

8. Revolve.

9. Constraints: Select the Front datum plane and sketch the following. Use

the Constraint tool and select the Tangent option. Then select the left most horizontal line and the arc attached to it to establish a tangent relationship.

10. Sweeps: Use the pull-down menu “Insert/Sweep/Protrusion” Select the

left side of the curve we just created to create a new sketch datum at the end.

12. Draw the following sketch and select the “finish” option once complete.

13. PatternCircular Pattern: 360°/3 = 120° (NOTE: First select the spoke to activate the icon.) Select “Axis” also select the “view axis”

FINISH .5 DIA

14. Fillet all edges at .125”

FINISH

15. Select the “Front” plane and start a sketch on it. Rebuild after completion.

16. REVOLVE

FINISH

17. Add .250” Rounds to the spoke – handle sections.

FINISHED

EXERCISE 5

Bottom-Up Assembly Creation

1. Go to “File/New and select the Assembly Template”.

3. To insert a part into the assembly select the Assemble icon. Select the Sheet_Metal_Bracket.prt, and hit the “open” button at the bottom.

4. Select the Automatic pull down and select the Default option.

6. Select the radial surface of the yoke_male shaft and then select the surface of the hole on the bracket.

7. Select the Placement tab and then select New Constraint option. Then select the top surface of the yoke_male, and the underside face of the top flange of the bracket. Note: make sure you deselect the Allow Assumptions icon to enable dynamic assembly motion (it’s located at the bottom of the Placement tab).

8. After applying the last constraint try moving the component using the Drag Component icon. Click on an edge of the yoke and drag with the left mouse button. It should spin in place only.

9. Insert the spider.prt and mate the cylindrical faces of the holes.

10. Select the side face of the spider and then the inside face of the male_yoke leg. You may need to rotate the assembly to see the correct faces. You may need to Regenerate after applying the last mate.

11. Select the concentric holes. Select the yoke_female leg and open face of the spider.

12. Use the Drag Component tool to locate the yoke_female near the bottom angled flange of the bracket.

13. Editing a Mate: RMB select the Spider from the feature tree on the right of

the screen. A pull-down menu will appear. Select Edit Definition.

14. Parallel Mate: Select both bottom faces of the yoke_female and the angled

flange of the bracket. Then select the Orient to assembly reference option to align parallel. (Parallel is needed here because there is a small gap between the parts.)

15. Insert the u-joint pin_2.prt, and select the cylindrical faces to mate.

16. Distance Mate: Select the end face of the pin and then select a parallel flat

17. Attach the remainder of the components.

18. After completion you should be able to use the Drag Component icon to dynamically rotate the assembly.

EXERCISE 6

Fundamental 2D Drawing Creation

1. Open the “Exercise 6” part file.

2. View Layout/Drawing Toolbar. Make sure Exercise 6 is shown in the

“Default model” box, and select Empty with format, then select a_format. You may need to browse to find the part if it does not show automatically.

3. The standard a sheet should automatically show up.

4. To insert views RMB (right mouse button) click/hold in the center of the drawing. Or select the “General” icon in the “Layout” tab tools ribbon. 5. Select “insert general view” from the list, and then left click to drop the

new view in.

6. Select the “FRONT” option from the “Drawing View” dialog box and hit OK. NOTE: If you lose the “Drawing View” dialog box simply double click on the drawing view itself to return it.

7. To move the views select the view then RMB click the “unlock view” option.

8. Projection view: Select the front view of the part then select the

“Projection” option in the “Layout” tab ribbon.

9. Section Views: Select the top view and repeat the projection view

steps, and then move the pointer up, LMB click to drop the new view. Then double LMB click on the view to activate the options of that view. 10. Turn on/show the “Datum Planes”

11. Section Views: Select the section option, in the menu manager select

“Done”, and then create new, then type “A” in the text box and hit the green check mark at the right of the screen. Then select the Plane option to the right, finally you can select the actual plane (horizontal) on the top view.

12. Section view arrows: You select and RMB click on the section view, then

find “Add Arrows”, click on the Top view and they should appear.

13. Detail View: Is added by selecting the “Detailed” tool in the “Layout”

ribbon. (NOTE: Do not pre-select the view.)

14. Select a center point for the view, and then sketch a spline around the area, and center mouse button click to close it. Then click to the right of

15. Auxiliary views: Are created by selecting the option then selecting the

edge of the flange on the front view. Then select the drop point. Double click on the view to change its appearance.

16. Isometric General Views: Are created when you select the general view

icon. Then select the location to drop the view. Double click on the view to change the appearance.

18. Dimensions and Annotations (2 Methods): Select the “.

a. Import (Show Model Annotations) dimensions used to create the model b. Create (New References) dimensions (Note: reference dimensions

cannot be changed)

19. When importing dimensions try using the feature/view option versus inserting all the dimensions for the mode as it will cluster all them together. Feature helps reduce the cluster and yet the dimensions are editable, providing the benefit to edit the actual parts and assemblies in a bi-directional fashion from the drawing.

21. Printing: Select the “Publish” tab for print and print preview options.

Note if you find it difficult to print using the Pro Engineer printer tools select the “PDF” option and print from Adobe instead.

22. Transitioning from Radius to Diameter when dimensioning, is simply

done by double clicking on the desired edge then middle click to drop a Diameter dimension. Versus a single click on an edge will result in a radius.

EXERCISE 7

Projected Curves and Sweeping

1. Sketch this on the “Front” plane.

2. Hit “Done” to exit the sketch.

3. Select the “Right” plane and start a sketch on it. 4. Draw the following.

6. Extrude the curve Mid-Plane 4”. It should extrude as a surface. Hit the green check to apply.

7. Go to. Then go to Edit/ Project.

8. Select References/Project a sketch/Sketch1-Curve that you drew/CTRL select all surfaces/Select the Front Datum/ Flip the arrow

9. Select the surface and RMB click to find the “Hide” option.

11. Hit the “Done” icon and Sweep/Protrusion using the curve as the Path and the circle as the Profile.

12. Also select: “SelectTraj/Curve Chain/Select All/Done/Done”

13. Draw a .500” circle at the intersection/end of the curve. Select “Done” and “OK”

19. Select Sweep/Protrusion using the curve as the Path and the circle as the Profile.

20. Also select: “SelectTraj/Curve Chain/Select All/Done/Done”

21. Select the concentric circle icon (buried under the circle tool). Select the edge of the face and click over the edge to assume an “Equal” diameter (R1/R1)

22. Sweep using the new path and converted entity as the profile.

22. CTRL Select both Protrusions from the Feature Tree, and then select the

23. Now using the tools you have learned over the past 5 weeks finish the remainder of the model.

Hints to complete the model…

EXERCISE 8

Swept Blend/Lofting

Swept Blends create a feature by making transitions between profiles. A Swept blend

can be a base, boss, cut, or surface.

1. Create 4 datum planes beginning from the “Front” plane and offset from each other as shown.

DTM Plane 1 – 6.00” DTM Plane 2 – 8.00” DTM Plane 3 – 1.00”

2. Sketch 1 on the “Front” plane should look like this… use the Spline tool. Objective: Create

a boat hull by lofting multiple section profiles.

3. Sketch 2 on “DTM 1” should look like this…

4. Sketch 3 on “DTM 2” should look like this…

6. Select the Right datum plane ad draw a horizontal line at the origin and dimension it 15” long.

8. References Trajectories: Select the 15” line. Select the “Solid” option.

9. Sections/Selected Sections: Select the 4 sketches in order from back to front.

10. You should have ½ a boat hull now…

11. Use the Mirror feature and select the flat side face as the plane to mirror from.

13. You are finished with the boat Hull.

EXERCISE 9

Top-Down Assembly Modeling

Top-Down Assembly Modeling is creating parts inside an assembly.

1. Create a new assembly file. 2. Go to the Create icon.

3. Save it as E9_Front and drop it on the “Front” plane. Create the following part from the drawing.

Objective: Create an assembly of a pencil sharpener. If the width is changed all parts

6. Create the following model in the context of the assembly-using offset or convert entities from the E9_Front model.

EXERCISE 10

Assembly Editing

This exercise will include both Bottom-Up and Top-Down Assembly Modeling.

7. Open the file called E10_asm assembly and modify according to the instructions noted on the drawing provided. You will have to mate the Battery part file.

Objective: To update the MP3 Assembly with the

changes requested by the boss as noted

EXERCISE 11

Sheet Metal Design

Sheet Metal part files can be very useful for extracting a flat pattern.

1. Go to file/open and select E11 for file type and locate “Gear Enclosure”. Objective: Model a sheet metal enclosure using Top-Down Assembly methods,

and flatten it.

Fold Unfold

Trim

Edge Flange

2. Insert a new part into the assembly; drop it on the end face of a gear shaft of the assembly. Name it “Cover 2” (This will be the enclosure) then select the front outside face. Convert Entities. “Offset”

4. Once completed the assembly should look like this. Right Mouse click on the surface of the enclosure and select “open”.

5. Convert to sheetmetal Go to an isometric view and “ctrl” select the four faces as shown.

6. To convert to a sheet metal part, select the pull down menu “Application/Sheet metal” select the “shell” option.

7. Go to the right view orientation and you should have this section view…

9. Double click on “Bends”. Hold the CTRL key while selecting. Hit done and OK.

12. Return to the assembly.

BONUS INFORMATION

ProE Creo Administration

Finding adequate computer hardware to run Inventor can be challenging, this lesson

looks at the multiple aspects of selecting hardware as well as modifying settings inside Creo to allow it to run efficiently and trouble free.

Selecting an Operating System (OS).

Windows XP Professional

Windows XP 64-Bit edition (Creo 3.0 is the last release for Windows XP) Windows Vista

Windows 7 Windows 8

Virtual Memory Settings inside the OS. It may be a good idea to increase or adjust your virtual memory setting. The norm would be x2 – x3 your current amount of ram.

Example 512MB of Ram 1000 – 1500 MB Virtual Ram. And keep the initial size the same as the maximum size. It is said that this prevents write errors.

Processors

(CPU)

Multiprocessing

Most CPU manufacturers are beginning to deliver multiple core processors. This can be seen with the AMD FX which has up to eight processing cores.

Which one will run Creo fastest? You can find benchmarks at www.spec.org specifically for Creo or you can look for the generic OpenGL benchmark results that usually use an OpenGL video game.

The question is: “Can Creo benefit from multiple cores?” Currently one might find an average of 10 – 15% performance increase with general modeling. This is because Creo is not fully written to take advantage of multithreaded processes. However, using the Creo Simulation, CFD, or Photolux rendering solutions one may discover 2x – 12x faster performance versus a single core processor. This is because these Creo applications do take full advantage of multithreaded processing.

The biggest benefit one might find is the ability to multitask while working with an FEA analysis. This is a long process and you could actually open up another window of Creo or Outlook and continue working while the analysis is running with little slow down in performance.

To check out what your computer has inside without opening the case download the free version of CPUID – CUP-Z http://www.cpuid.com/softwares/cpu-z.html

Or ctrl-alt-del and start task manager to see how many threads your CPU has, as well as how much RAM.

Graphics Cards

Here are a few brands that are in the Professional Category and actually have specific drivers that are written to run Inventor at its best.

 NVIDIAQuadro series (not NVS series)

 Quadro FX K600 erp.$159 (erp- estimated retail price)  Quadro FX K2000 erp.$499

 Quadro FX K4000 erp.$799

 ATI FirePro series (not FireMV series)

 FirePro 3900 erp.$159

 FirePro 5900 erp. $499

 FirePro 7900

 Intel Xeon

 P4000 HDintegrated graphics (must be P = Professional rated)

These cards are considerably more expensive that mainstream cards but the benefits of experiencing less crashes or visual problems with Pro/E outweigh the cost.

If you are using Inventor at work, DON’T SKIMP! Buy a professional grade video card. For home use the nVidia Geforce or AMD Radeon series are fair, but you will still experience some graphical glitches.

Bonus EXERCISE 3B

Family Tables

Family Tables enable you to create multiple part configurations derived from a single part file.

1. Open the Exercise_4_FAMILY part file.

GOAL: Learn how to make multiple part configurations within a single part file. In this exercise we make a cast and machined version of the ratchet.

2. Go to the pull down menu- “Tools/Family Tables”

4. Select the Feature option, then select the “Extrude 4, 5, and 6”

5. Select “OK”. 6. Select “Verify”

7. In the columns type “N” for no- to supress the feature, or “Y” for yes for the

8. Hit “Verify” once again on the smaller Family Tree box.